Database->python->Xml->Xslt->Client

[john]

Hi
I am devlopeing a data centric intranetsite with data in mysql
database
I would like your opinion on this architecture
Data will be fetched from database by python & converted into xml
The XSLT will be stored on the client cache.So only the xml is
transferred to client & the xslt transforms it into xhtml & displays
it.
Will this improve performance or have i gone nuts??